Industrial Tools Inc. IBM 3397101 Non-Contact Tungsten Carbide Slitter Knife Assembly
This is an Industrial Tool, Inc. / IBM non-contact slitter knife assembly. The knife box uses four air bearings to support the knives along with a ceramic guide to maintain axial alignment within 0.25 micron. Knives are tungsten carbide bearing on polyurethane. This slitter module as currently equipped to slit a Hastelloy web into ten 10 mm wide strips. Knives can be reconfigured by ITI. Note that as shown in the photographs, one knife is missing its air bearing retaining nut.